Nice pick up! Just FYI, if you want to run the full Euro-R front bumper and lip, you NEED to have the JDM bumper support bar installed in place of the USDM one.
But, since the rear lip and front lip are compatible with the USDM bumpers you can avoid that. Another thing though, the Euro-R grill doesn't fit "perfectly" on the USDM bumper. It fits but there are slight gaps.
So the choice is:
1. Full front JDM Euro-R bumper and lip with JDM support bar.
or
2. USDM front bumper with Euro-R lip and grill w/ slight gaps.
Good luck!